Case study - SEAWATCH Greece - POSEIDON

Fugro was selected in 1995 by the Puertos del Estado (Coast and Harbour Authorities) in Spain to execute the contract for the project: 'Warning and Observation Network for the Marine Environment in Spanish Coastal Waters (instrumentation and control)'.

Fugro OCEANOR started implementation of the first generation operational oceanographic forecasting system for Greece in 1998. The system named POSEIDON is hosted by Hellenic Centre for Marine Research. The last component to POSEIDON will be completed March 2011.

A total network of 15-20 buoys large medium size and small designed for various purposes. Some of the buoys are serving real time services on the POSEIDON- Web service. . This home page has become one of most popular home pages in Greece with more than 400.000 visitors monthly. Surface observing buoys, sensors string down to 1000m water depth provides data in real time. It also includes a deep ocean platform hosting tsunami detection unit with additional sensors attached. All data from the deep ocean platform are transmitted acoustically to a surface buoy. With the last component of POSEIDON, this facility will be expanded to serve as platform for a gas module measuring CO2, O2 and CH4. A hydro physical module including salinity, temperature, ph, turbidity and finally a pressure/tsunami module measuring water level and deviations possible associated with tsunami.

Numerical models for atmospheric forecasting, hydrodynamic forecasting and wave forecast. Engineering model for shallow water model. HCMR has amended an ecological model linked to the physical models delivered in POSEIDON-1 and 2.

POSEIDON is a turn key system where Fugro OCEANOR has been the main contractor setting up the system including the buoys, sensors, numerical models, supercomputer platforms, data control and data management systems. Fugro OCEANOR has taken advantage of a very fruitful co-operation with Greek Academic Institutions namely Aristotle University in Thessaloniki, University of Athens, University of Aegean and Technical University of Athens and from US University of Connecticut. Acknowledgement also to 01-Pliforiki and Medicon for delivering and technical support for the supercomputers.

The overall budget for POSEIDON including the HCMR part, has been approx 25mill Euro and funded by EEA grants and Greek Ministry of National Economy.

POSEIDON has become state of the art in operational oceanographic system in the Mediterranean and some of the stations has been selected as climate reference stations (EuroSITES) which is a co-operation of European Academic Marine Institutions.

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